Twin sisters Michal and Merav Mor, who co-founded the health tech company Lumen, have developed a keen understanding of metabolism through their experiences as triathletes. Their company offers a device that analyzes metabolism using a breath test, which helps users determine whether they are burning carbohydrates or fat. The Mor sisters emphasize the importance of personalized nutrition, noting that what works for one individual may not work for another, even among identical twins. They advocate for three primary strategies to optimize metabolic health: prioritizing muscle building, consuming carbohydrates close to workout times, and having early dinners. Building muscle is essential as it acts as a metabolically active tissue that can store energy, thereby stabilizing blood sugar levels and enhancing performance. Eating carbs in the morning or before workouts is linked to better metabolic flexibility, while early dinners help align the body's circadian rhythm, supporting fat burning during sleep. Their insights, derived from extensive research and user data, highlight the significance of understanding metabolism for both athletic performance and overall health.